ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

HListConnection (Function)
Returns the list of connections currently described in the application:
  • connections described in the data model editor (for the main analysis and, if necessary, additional analyses).
  • connections described by programming (with functions HDescribeConnection or HOpenConnection).
<Source>.ChangeConnection (Function)
Dynamically changes the connection associated with a data file.
SQLConnect (Function)
Connects the current application to a database that must be interrogated via SQL.
SQLChangeConnection (Function)
Modifies the current connection.
HDescribeConnection (Function)
Describes a new connection to an external database.
<Connection variable>.OpenConnection (Function)
Opens a connection to a specific database.
HConnect (Function)
Redefines one or more connection parameters via Native Connector (Access, SQL Server, MySQL or Oracle) or via an OLE DB access on a specific table or set of tables.
Optional connection information
When defining the connections in the data model editor or when defining the connections through programming, you have the ability to specifier the optional connection information...
<Connection variable>.CloseConnection (Function)
Closes a connection to a database.
SQLConnectWS (Function)
Connects the current application to a database that will be queried by SQL through a web service proxy (SOAP).
HListFile (Function)
Returns the list of files:
  • current analysis.
  • analyses in progress (projects with multiple analyses).
  • a specific analysis recognized by the HFSQL engine.
  • available on a connection via a Native Connector or an OLE DB driver.
  • for a group of files defined in the data model editor.
HOpenConnection (Function)
Opens a connection to a specific database.
HChangeConnection (Function)
Dynamically changes the connection associated with a data file.
Creating a WINDEV application for Linux
WINDEV allows you to create native 64-bit Linux executables. Their UI is developed with the window editor....
HTTPSendForm (Function)
Sends an HTTP form.
mongoWriteConcern (Type of variable)
The mongoWriteConcern type is used to define the level of acknowledgment of receipt requested for the write operations in a stand-alone mongod, in a set of replicas or in fragmented clusters.
Using C# code
You can use C# code in WINDEV applications (Windows applications and components, .NET assemblies......
UploadCopyFile (Function)
Saves on the server a file "uploaded" by the Web user. This upload may have been performed: via an "Upload" edit control. via a single-file or multi-file Upload control....
7. Sending an email
WINDEV Tutorial: WINDEV application: Managing data Lesson 7 - Sending an email - 20 min
Troubleshooting
This chapter presents the main problems (and their solutions) that can occur when using the WEBDEV Application Server...
Null (Property)
The Null property is used to: Assign NULL to the item for the current record. Find out whether the item is associated with the NULL value for the current record. Define the default value of an item when the item is described through programming....
diagSelection (Type of variable)
The diagSelection type is used to define all the advanced characteristics of a selection made in a diagram.
FAQ about Windows Vista and later
This help page presents a list of problems that may occur when using Windows Vista and later......
Upgrading a WEBDEV Cluster
WEBDEV Custer is a hosting solution for WEBDEV sites that ensures high performance and availability......
UI compilation errors
UI compilation errors indicate the possible problems detected in your interfaces whenever a window, a page or a report is saved or whenever the project is recompiled......
SQL query (WLanguage type)
The "SQL query" type is used to write an SQL query in the WLanguage code.
HTML Display control processes
WINDEV and WINDEV Mobile include different WLanguage events associated with HTML Display Controls......
FileDisplay (Function)
Displays a file in the browser of Web user.
Deep links to mobile applications
Deep linking allows you to redirect the user to specific content in a mobile application (rather than in a browser) when they click on a link in a web page or in an email......
FileToPage (Function)
Automatically updates the controls of a page with: the values of the bound items in the current record (loaded in memory) of the data file described in the data model editor. This operation is performed regardless of the state of the controls (grayed, inactive or invisible). the values of the bound WLanguage variables. This operation is performed regardless of the state of the controls (grayed, inactive or invisible)....
Diagram Editor (WEBDEV): Features
The Diagram Editor control includes many features accessible via......
2. Listing products
WEBDEV Tutorial - Creating a website with back office processes Lesson 2 - Listing products - 50 min
Managing bar codes
The use of bar codes to identify and manage products has become essential......
Report based on a query
Queries are used to easily select records in one or more data files......
Managing accounts
WEBDEV Account Manager allows you to create a deployment account......
eChangeCurrency (Function)
Converts a currency into another currency.
eToCurrency (Function)
Converts a value expressed in Euro into another currency.
Close (Function)
Closes a WINDEV window (and returns a value if necessary).